1.Cuscutae Semen-Lycii Fructus Improves Spermatogenesis in Rat Model of Oligoasthenozoospermia by Inhibiting Oxidative Stress-induced Blood-testis Barrier Damage via Regulating SIRT1/Nrf2 Signaling Pathway
Wen DUAN ; Xiaojing ZHANG ; Wenjie DING ; Jianning JIN ; Guoqing CHU
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(17):29-38
ObjectiveTo investigate the effect of the herb pair Cuscutae Semen-Lycii Fructus on oxidative stress-induced blood-testis barrier dysfunction and spermatogenesis in the rat model of oligoasthenozoospermia (OAS) and decipher the mechanism based on the silent information regulator 1 (SIRT1)/nuclear factor erythroid 2-related factor 2 (Nrf2) signaling pathway. MethodsThirty-five male SD rats were randomized into a blank group (n=7) and a modeling group (n=28). The OAS model was established by gavage of hydrocortisone aqueous solution combined with single factor electrical stimulation. The modeled rats were randomly assigned into the following groups: model, Cuscutae Semen-Lycii Fructus granules (3.2 g·kg-1), Cuscutae Semen-Lycii Fructus total flavonoids (0.34 g·kg-1), and L-carnitine (0.38 g·kg-1), and treated for 4 weeks. The sperm quality of rats was assessed by an automatic sperm analyzer. The levels of superoxide dismutase (SOD), malondialdehyde (MAD), and glutathione peroxidase (GSH-Px) in the testicular tissue were determined by enzyme-linked immunosorbent assay. Hematoxylin-eosin staining was employed to reveal the pathological changes in the testicular tissue and score the spermatogenic function. Transmission electron microscopy was employed to observe the ultrastructural changes of Sertoli cells. Western blot and Real-time PCR were employed to determine the protein and mRNA levels, respectively, of SIRT1, Nrf2, Occludin, zonula occludens-1 (ZO-1), connexin 43 (CX43), and β-catenin. ResultsCompared with the blank group, the model group showed decreased total sperm count and motility (P<0.05, P<0.01), obvious damage in the testicular tissue and blood-testis barrier structure, reduced score of spermatogenic function (P<0.01), declined levels of GSH-Px and SOD in the testicular tissue (P<0.05), elevated level of MDA, and down-regulated protein levels of SIRT1, Nrf2, ZO-1, CX43, β-catenin, and occludin (P<0.05, P<0.01) and mRNA levels of SIRT1, Nrf2, ZO-1, CX43, and β-catenin in the testicular tissue (P<0.05, P<0.01). After treatment, the testicular tissue, blood-testis barrier structure, and score of spermatogenic function (P<0.01) were improved in the Cuscutae Semen-Lycii Fructus granules group, Cuscutae Semen-Lycii Fructus total flavonoids group, and L-carnitine group. Compared with the model group, the treatment groups presented lowered levels of GSH-Px and SOD (P<0.05, P<0.01), and the Cuscutae Semen-Lycii Fructus granule group showed a decline in MDA level. The protein and mRNA levels of SIRT1, Nrf2, ZO-1, CX43, β-catenin, and occludin were up-regulated in the Cuscutae Semen-Lycii Fructus granules group and total flavonoids group (P<0.05, P<0.01). ConclusionThe herb pair Cuscutae Semen-Lycii Fructus can regulate the SIRT1/Nrf2 pathway to inhibit oxidative stress and alleviate the blood-testis barrier damage, thereby improving the spermatogenic function in the rat model of OAS. Total flavonoids may be the material basis for the therapeutic effect of Cuscutae Semen-Lycii Fructus.
2.Cuscutae Semen-Lycii Fructus Improves Spermatogenesis in Rat Model of Oligoasthenozoospermia by Inhibiting Oxidative Stress-induced Blood-testis Barrier Damage via Regulating SIRT1/Nrf2 Signaling Pathway
Wen DUAN ; Xiaojing ZHANG ; Wenjie DING ; Jianning JIN ; Guoqing CHU
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(17):29-38
ObjectiveTo investigate the effect of the herb pair Cuscutae Semen-Lycii Fructus on oxidative stress-induced blood-testis barrier dysfunction and spermatogenesis in the rat model of oligoasthenozoospermia (OAS) and decipher the mechanism based on the silent information regulator 1 (SIRT1)/nuclear factor erythroid 2-related factor 2 (Nrf2) signaling pathway. MethodsThirty-five male SD rats were randomized into a blank group (n=7) and a modeling group (n=28). The OAS model was established by gavage of hydrocortisone aqueous solution combined with single factor electrical stimulation. The modeled rats were randomly assigned into the following groups: model, Cuscutae Semen-Lycii Fructus granules (3.2 g·kg-1), Cuscutae Semen-Lycii Fructus total flavonoids (0.34 g·kg-1), and L-carnitine (0.38 g·kg-1), and treated for 4 weeks. The sperm quality of rats was assessed by an automatic sperm analyzer. The levels of superoxide dismutase (SOD), malondialdehyde (MAD), and glutathione peroxidase (GSH-Px) in the testicular tissue were determined by enzyme-linked immunosorbent assay. Hematoxylin-eosin staining was employed to reveal the pathological changes in the testicular tissue and score the spermatogenic function. Transmission electron microscopy was employed to observe the ultrastructural changes of Sertoli cells. Western blot and Real-time PCR were employed to determine the protein and mRNA levels, respectively, of SIRT1, Nrf2, Occludin, zonula occludens-1 (ZO-1), connexin 43 (CX43), and β-catenin. ResultsCompared with the blank group, the model group showed decreased total sperm count and motility (P<0.05, P<0.01), obvious damage in the testicular tissue and blood-testis barrier structure, reduced score of spermatogenic function (P<0.01), declined levels of GSH-Px and SOD in the testicular tissue (P<0.05), elevated level of MDA, and down-regulated protein levels of SIRT1, Nrf2, ZO-1, CX43, β-catenin, and occludin (P<0.05, P<0.01) and mRNA levels of SIRT1, Nrf2, ZO-1, CX43, and β-catenin in the testicular tissue (P<0.05, P<0.01). After treatment, the testicular tissue, blood-testis barrier structure, and score of spermatogenic function (P<0.01) were improved in the Cuscutae Semen-Lycii Fructus granules group, Cuscutae Semen-Lycii Fructus total flavonoids group, and L-carnitine group. Compared with the model group, the treatment groups presented lowered levels of GSH-Px and SOD (P<0.05, P<0.01), and the Cuscutae Semen-Lycii Fructus granule group showed a decline in MDA level. The protein and mRNA levels of SIRT1, Nrf2, ZO-1, CX43, β-catenin, and occludin were up-regulated in the Cuscutae Semen-Lycii Fructus granules group and total flavonoids group (P<0.05, P<0.01). ConclusionThe herb pair Cuscutae Semen-Lycii Fructus can regulate the SIRT1/Nrf2 pathway to inhibit oxidative stress and alleviate the blood-testis barrier damage, thereby improving the spermatogenic function in the rat model of OAS. Total flavonoids may be the material basis for the therapeutic effect of Cuscutae Semen-Lycii Fructus.
3.Phenomics of traditional Chinese medicine 2.0: the integration with digital medicine
Min Xu ; Xinyi Shao ; Donggeng Guo ; Xiaojing Yan ; Lei Wang ; Tao Yang ; Hao LIANG ; Qinghua PENG ; Lingyu Linda Ye ; Haibo Cheng ; Dayue Darrel Duan
Digital Chinese Medicine 2025;8(3):282-299
Abstract
Modern western medicine typically focuses on treating specific symptoms or diseases, and traditional Chinese medicine (TCM) emphasizes the interconnections of the body’s various systems under external environment and takes a holistic approach to preventing and treating diseases. Phenomics was initially introduced to the field of TCM in 2008 as a new discipline that studies the laws of integrated and dynamic changes of human clinical phenomes under the scope of the theories and practices of TCM based on phenomics. While TCM Phenomics 1.0 has initially established a clinical phenomic system centered on Zhenghou (a TCM definition of clinical phenome), bottlenecks remain in data standardization, mechanistic interpretation, and precision intervention. Here, we systematically elaborates on the theoretical foundations, technical pathways, and future challenges of integrating digital medicine with TCM phenomics under the framework of “TCM phenomics 2.0”, which is supported by digital medicine technologies such as artificial intelligence, wearable devices, medical digital twins, and multi-omics integration. This framework aims to construct a closed-loop system of “Zhenghou–Phenome–Mechanism–Intervention” and to enable the digitization, standardization, and precision of disease diagnosis and treatment. The integration of digital medicine and TCM phenomics not only promotes the modernization and scientific transformation of TCM theory and practice but also offers new paradigms for precision medicine. In practice, digital tools facilitate multi-source clinical data acquisition and standardization, while AI and big data algorithms help reveal the correlations between clinical Zhenghou phenomes and molecular mechanisms, thereby improving scientific rigor in diagnosis, efficacy evaluation, and personalized intervention. Nevertheless, challenges persist, including data quality and standardization issues, shortage of interdisciplinary talents, and insufficiency of ethical and legal regulations. Future development requires establishing national data-sharing platforms, strengthening international collaboration, fostering interdisciplinary professionals, and improving ethical and legal frameworks. Ultimately, this approach seeks to build a new disease identification and classification system centered on phenomes and to achieve the inheritance, innovation, and modernization of TCM diagnostic and therapeutic patterns.
4.Tildrakizumab for moderate-to-severe plaque psoriasis in Chinese patients: A 12-week randomized placebo-controlled phase III trial with long-term extension
Chen YU ; Songmei GENG ; Bin YANG ; Yunhua DENG ; Fuqiu LI ; Xiaojing KANG ; Mingye BI ; Furen ZHANG ; Yi ZHAO ; Weili PAN ; Zhongwei TIAN ; Jinhua XU ; Zhenghua ZHANG ; Nan YU ; Xinsuo DUAN ; Shuping GUO ; Qing SUN ; Weiquan LI ; Juan TAO ; Zhijun LIU ; Yuanyuan YIN ; Gang WANG
Chinese Medical Journal 2024;137(10):1190-1198
Background::There is a need for effective and safe therapies for psoriasis that provide sustained benefits. The aim of this study was to assess the efficacy and safety of tildrakizumab, an anti-interleukin-23p19 monoclonal antibody, for treating moderate-to-severe plaque psoriasis in Chinese patients.Methods::In this multi-center, double-blind, phase III trial, patients with moderate-to-severe plaque psoriasis were enrolled and randomly assigned (1:1) to receive subcutaneous tildrakizumab 100 mg or placebo at weeks 0 and 4. Patients initially assigned to placebo were switched to receive tildrakizumab at weeks 12, 16, and every 12 weeks thereafter. Patients in the tildrakizumab group continued with tildrakizumab at week 16, and every 12 weeks until week 52. The primary endpoint was the Psoriasis Area and Severity Index (PASI 75) response rate at week 12.Results::At week 12, tildrakizumab demonstrated significantly higher PASI 75 response rates (66.4% [73/110] vs. 12.7% [14/110]; difference, 51.4% [95% confidence interval (CI), 40.72, 62.13]; P <0.001) and Physician’s Global Assessment (60.9% [67/110] vs. 10.0% [11/110]; difference, 49.1% [95% CI, 38.64, 59.62]; P <0.001) compared to placebo. PASI 75 response continued to improve over time in both tildrakizumab and placebo-switching to tildrakizumab groups, reaching maximal efficacy after 28 weeks (86.8% [92/106] vs. 82.4% [89/108]) and maintained up to 52 weeks (91.3% [95/104] vs. 87.4% [90/103]). Most treatment-emergent adverse events were mild and not related to tildrakizumab. Conclusion::Tildrakizumab demonstrated durable efficacy through week 52 and was well tolerated in Chinese patients with moderate-to-severe plaque psoriasis.Trial registration::ClinicalTrials.gov, NCT05108766.
5.An early warning model for sepsis complicated with acute respiratory distress syndrome based on synthetic minority oversampling technique algorithm
Hongwei DUAN ; Xiaojing LI ; Xingju YANG ; Fei WANG ; Fengyong YANG
Chinese Critical Care Medicine 2024;36(4):358-363
Objective:To explore the independent risk factors of acute respiratory distress syndrome (ARDS) in patients with sepsis, establish an early warning model, and verify the predictive value of the model based on synthetic minority oversampling technique (SMOTE) algorithm.Methods:A retrospective case-control study was conducted. 566 patients with sepsis who were admitted to Jinan People's Hospital from October 2016 to October 2022 were enrolled. General information, underlying diseases, infection sites, initial cause, severity scores, blood and arterial blood gas analysis indicators at admission, treatment measures, complications, and prognosis indicators of patients were collected. The patients were grouped according to whether ARDS occurred during hospitalization, and the clinical data between the two groups were observed and compared. Univariate and binary multivariate Logistic regression analysis were used to select the independent risk factors of ARDS during hospitalization in septic patients, and regression equation was established to construct the early warning model. Simultaneously, the dataset was improved using the SMOTE algorithm to build an enhanced warning model. Receiver operator characteristic curve (ROC curve) was drawn to validate the prediction efficiency of the model.Results:566 patients with sepsis were included in the final analysis, of which 163 developed ARDS during hospitalization and 403 did not. Univariate analysis showed that there were statistically significant differences in age, body mass index (BMI), malignant tumor, blood transfusion history, pancreas and peripancreatic infection, gastrointestinal tract infection, pulmonary infection as the initial etiology, acute physiology and chronic health evaluation Ⅱ (APACHEⅡ) score, sequential organ failure assessment (SOFA) score, albumin (Alb), blood urea nitrogen (BUN), mechanical ventilation therapy, septic shock and length of intensive care unit (ICU) stay between the two groups. Binary multivariate Logistic regression analysis showed that age [odds ratio ( OR) = 3.449, 95% confidence interval (95% CI) was 2.197-5.414, P = 0.000], pulmonary infection as the initial etiology ( OR = 2.309, 95% CI was 1.427-3.737, P = 0.001), pancreas and peripancreatic infection ( OR = 1.937, 95% CI was 1.236-3.035, P = 0.004), septic shock ( OR = 3.381, 95% CI was 1.890-6.047, P = 0.000), SOFA score ( OR = 9.311, 95% CI was 5.831-14.867, P = 0.000) were independent influencing factors of ARDS during hospitalization in septic patients. An early warning model was established based on the above risk factors: P1 = -4.558+1.238×age+0.837×pulmonary infection as the initial etiology+0.661×pancreas and peripancreatic infection+1.218×septic shock+2.231×SOFA score. ROC curve analysis showed that the area under the ROC curve (AUC) of the model for ARDS during hospitalization in septic patients was 0.882 (95% CI was 0.851-0.914) with sensitivity of 79.8% and specificity of 83.4%. The dataset was improved based on the SMOTE algorithm, and the early warning model was rebuilt: P2 = -3.279+1.288×age+0.763×pulmonary infection as the initial etiology+0.635×pancreas and peripancreatic infection+1.068×septic shock+2.201×SOFA score. ROC curve analysis showed that the AUC of the model for ARDS during hospitalization in septic patients was 0.890 (95% CI was 0.867-0.913) with sensitivity of 85.3% and specificity of 79.1%. This result further confirmed that the early warning model constructed by the independent risk factors mentioned above had high predictive performance. Conclusions:Risk factors for the occurrence of ARDS during hospitalization in patients with sepsis include age, pulmonary infection as the initial etiology, pancreatic and peripancreatic infection, septic shock, and SOFA score. Clinically, the probability of ARDS in patients with sepsis can be assessed based on the warning model established using these risk factors, allowing for early intervention and improvement of prognosis.
6.Expert recommendation on the management of perioperative hyphema and intraocular pressure spike following goniotomy
Xiulan ZHANG ; Xiaojing PAN ; Min KE ; Li TANG ; Lin XIE ; Liming TAO ; Sujie FAN ; Guangxian TANG ; Xuanchu DUAN ; Huiping YUAN
Chinese Journal of Experimental Ophthalmology 2024;42(10):881-886
Goniotomy (GT) is a safe and effective type of minimally invasive glaucoma surgery (MIGS) extensively utilized in China.It is particularly suited for treating primary open-angle glaucoma and advanced primary angle-closure glaucoma.Although GT is generally safe, hyphema and postoperative intraocular pressure (IOP) spikes remain common complications after GT.Currently, there is no standardized protocol for managing these issues, which can impact clinicians' assessment of surgical outcomes and potentially affect the prognosis.Therefore, it is crucial to establish comprehensive and detailed management protocols for perioperative hyphema and IOP spike following GT.This will guide clinical practitioners in managing complications appropriately and systematically, thereby promoting the further development and refinement of MIGS.To address these concerns, several domestic glaucoma treatment experts along with members of the Glaucoma Society of Ophthalmology, Guangdong Medical Association reviewed existing literature and held recommendation meetings to develop a guideline for managing perioperative hyphema and IOP spikes following GT.It includes defining perioperative hyphema in GT, discussing its high-risk factors and outcomes, exploring methods for prevention prior to surgery and techniques to reduce bleeding during the procedure, and managing postoperative hemorrhage.Additionally, it covers defining IOP spikes after GT, investigates their causes and contributing factors, and outlines management strategies and anticipated outcomes to provide a valuable resource for clinicians.
7.ZHANG Farong's Experience in the Staged Treatment of Hyperthyroidism with Triangular Medicine
Wen DUAN ; Rensong YUE ; Xu YANG ; Xiaojing ZHANG
Journal of Traditional Chinese Medicine 2024;65(16):1650-1655
This paper summarized Professor ZHANG Farong's experience in the staged treatment of hyperthyroi-dism with triangular medicine. It is considered that "pathogenic heat consuming and damaging qi-yin" is the key pathogenesis of hyperthyroidism. In the early stage, liver constraint transforms into fire, and then pathogenic heat becomes exuberant inside, consuming qi and damaging yin. In the middle stage, the fire and heat are intense, and phlegm and stasis are binded, when qi and yin are initially depleted. In the late stage, both qi and yin are deficient, and as the disease lasts for a long time, the kidneys are affected, resulting in liver and kidney depletion. For treatment, it is suggested to put focus on rectifying healthy qi and dispelling pathogen, protecting qi and yin, and treating the disease by stages based on syndrome differentiation, and eight groups of triangular medicines have been summarized according to the characteristics of pathogenesis in different periods. In the early stage, the combination of Chaihu (Radix Bupleuri), Xiangfu (Rhizoma Cyperi) and Yujin (Radix Curcumae) is used to soothe the liver and resolve constraint, and the combination of Longdancao (Radix et Rhizoma Gentianae), Huangqin (Radix Scutellariae) and Zhizi (Fructus Gardeniae) is recommended to clear liver and drain fire. In the middle stage, the combination of Xiakucao (Spica Prunellae), Baihua Sheshecao (Herba Hedyotis Diffusae) and Banzhilian (Herba Scutellariae Barbatae) is used to clear heat and dissipate masses, and the combination of Huangyaozi (Rhizoma Dioscoreae bulbiferae), Maozhuacao (Ranunculus Ternatus) and Shancigu (Asarum Sagittarioides) can dissolve phlegm and dissipate masses, and the combination of Danshen (Radix et Rhizoma Salviae Miltiorrhizae), Xuanshen (Radix Scrophulariae) and Kushen (Radix Sophorae Flavescentis) can invigorate blood and eliminate goiter. In the late stage, the combination of Dangshen (Radix Codonopsis), Baizhu (Rhizoma Atractylodis Macrocephalae) and Yiyiren (Semen Coicis) can fortify spleen and replenish qi, and the combination of Maidong (Radix Ophiopogonis), Beishashen (Radix Glehniae) and Wuweizi (Fructus Schisandrae Chinensis) is used to nourish yin and calm heart, while the combination of Huangqi (Radix Astragali), Huangjing (Rhizoma Polygonati) and Diyu (Radix Sanguisorbae) is used to nourish yin and replenish kidneys.
8.Risk factors for biliary stricture and prognosis after orthotopic liver transplantation
Decai KONG ; Xiaojing ZHANG ; Yangguang YUN ; Haoyu DUAN ; Junfeng YE
Journal of Clinical Hepatology 2024;40(11):2253-2259
Objective To investigate the risk factors for biliary stricture within two years after orthotopic liver transplantation,and analyze the survival.Methods A retrospective analysis was performed for the data of 495 patients who underwent liver transplantation at Liver Transplantation Center of The First Hospital of Jilin University from January 2014 to January 2022,and according to the presence or absence of biliary stricture within two years after liver transplantation,the 495 patients were divided into stricture group with 89 patients and non-stricture group with 406 patients.The risk factors for biliary stricture and prognosis were analyzed.The independent-samples t-test was used for comparison of normally distributed continuous data between two groups,and the Mann-Whitney U test was used for comparison of non-normally distributed continuous data between two groups;the chi-square test was used for comparison of categorical data between two groups.Univariate and multivariate Cox regression analyses were used for the analysis of risk factors,and the Kaplan-Meier method was used for survival analysis.Results Recipient sex(hazard ratio[HR]=1.808,95%confidence interval[CI]:1.055-3.098,P=0.031),preoperative total bilirubin of the recipient(HR=1.002,95%CI:1.001-1.003,P=0.001),cold ischemia time(HR=1.003,95%CI:1.001-1.005,P=0.007),history of abdominal surgery for the recipient(HR=3.851,95%CI:2.273-6.524,P<0.001),and mismatch of donor-recipient bile ducts(HR=1.962,95%CI:1.041-3.698,P=0.037)were identified as independent risk factors for biliary stricture within two years after transplantation.The median follow-up time was 4.09 years,and the 1-,3-,and 5-year survival rates were 92.7%,80.5%,and 75.4%,respectively,after liver transplantation.The onset of biliary stricture within two years after liver transplantation had no significant impact on the survival of patients undergoing orthotopic liver transplantation.Conclusion Recipient sex,preoperative total bilirubin of the recipient,cold ischemia time,history of abdominal surgery for the recipient,and mismatch of donor-recipient bile ducts are independent risk factors for biliary stricture within two years after transplantation.The onset of biliary stricture within two years after transplantation does not affect the survival time of patients undergoing orthotopic liver transplantation.
9.α-Hederin Induces Apoptosis in Hepato-cellular Carcinoma Cells by Activating and Stabilizing p53/Noxa Signaling Pathway
Xiaojing CHEN ; Li ZHOU ; Kaiqi LIU ; Jufeng DUAN ; Ming LIU ; Hongliang LI ; Xuanbin WANG
Herald of Medicine 2024;43(3):334-345
Objective To investigate the inhibitory effects and mechanisms of α-hederin,an active ingredient in Fruc-tus Akebiae,on hepatocellular carcinoma(HCC)cells.Methods HCC cells were divided into four groups and treated with α-hederin(0,10,20,and 30 μmol·L-1)for 24 h and 48 h,respectively.MTT assays were used to detect the cell proliferation rate,flow cytometry(FCM)was used to detect the apoptotic rate,transcriptomics was used to screen signaling pathways in α-hederin-treated HCC cells,RNA interference was exploited to verify the underlying signaling pathway,and real-time quantitative PCR(qRT-PCR)and Western blotting(WB)were used to detect expression changes of the mRNA and protein of TP53(p53),PMAIP1(Noxa),and apoptosis-associated proteins,Caspase9 and Caspase3.Results α-Hederin induced apoptosis by activa-ting apoptosis-associated proteins,PARP,Caspase9 and Caspase3.Transcriptomics,qRT-PCR,and WB results also showed that α-hederin increased the mRNA and protein expression of p53 and Noxa.Furthermore,α-hederin inhibited the protein degradation of p53 and Noxa,reversing the apoptosis decrease in p53/Noxa siRNA-knocked-down HCC cells.In vivo results showed that α-hederin inhibited the growth of HCC tumors.Conclusion α-hederin may induce the apoptosis of HCC cells by activating and stabilizing the p53/Noxa signaling pathway.
10.Maggot alleviates imiquimod-induced psoriasis-like skin lesions in mice by inhibiting immune stress and complement activation
Hong YAO ; Kedi LIU ; Chengzhao LIU ; Weihong LI ; Qi DAI ; Shi ZHAO ; Ziheng DING ; Hefei WANG ; Xiaojing GE ; Peifeng WEI ; Jialin DUAN ; Miaomiao XI
Journal of Southern Medical University 2024;44(11):2121-2130
Objective To explore the therapeutic mechanism of maggot for psoriasis-like lesions in mice from the perspective of immune stress and complement activation regulation.Methods Thirty-six male C57BL/6 mice were randomly divided into control group,model group,maggot(1.25%,2.5%,and 5%)groups,and Benvitimod(1%)group.Psoriasis-like lesions were induced by application of imiquimod cream,and the severity of skin lesions was assessed using the modified Psoriasis Area and Severity Index(MPASI)score.Auricular swelling of the mice was observed,and histopathological changes of the skin lesions were examined with HE staining.Scratching behavior of the mice was observed and the spleen index was calculated.Toluidine blue staining was used to detect mast cells in the skin lesions,and serum levels of IgG,IgM,the complements CH50,C1s,C3,C3a,C5 and C5a,and the inflammatory factors IL-23,IL-17A and TNF-α were determined with ELISA.Results In mice with imiquimod-induced psoriasis-like skin lesions,treatment with the maggot at the 3 doses significantly decreased MPASI score,alleviated auricular swelling and pathologies in the skin lesions,reduced scratching behaviors,spleen index,and the number of mast cells in the lesions.Treatment with high-dose maggot significantly lowered serum levels of IgG,C1s,C3a,C5a,IL-23,IL-17A and TNF-α and the levels of C1s,C3,C3a,C5 and C5a in the lesion tissue,and increased serum levels of CH50,C3,and C5.The therapeutic effect of maggot showed a dose-effect dependence.Conclusion Maggot can alleviate psoriasis-like skin lesions in mice by inhibiting immune stress and complement activation.

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